Recombinant Human IL-4 Protein

货号: rp156008
有货
级别和纯度: 无载体 ? 无载体(Carrier Free)—— 不含添加的载体蛋白/稳定剂。当载体(如 BSA)会干扰偶联或敏感检测时使用。 生物活性 ? 生物活性级(Bioactive)—— 经验证在功能检测中保持生物活性。当分子须具有功能活性而不仅是纯度时使用。 高性能 ? 高性能级 —— 纯度和性能特性经过优化。适用于普通等级无法满足的灵敏分析。 His标签 ? 组氨酸(His) 标签级 —— 带有 His 标签的重组蛋白,供亲和纯化/检测。用于纯化、固定或检测带标签蛋白。 PBS Only ? 仅 PBS 配方 —— 以磷酸盐缓冲液供应,不含其他添加剂。当需要不含稳定剂/载体的洁净 PBS 缓冲液时使用。 ≥95%(SDS-PAGE)
Accession #
P05112
蛋白标签
N-His
表达系统
E. coli
内毒素水平
<1.0 EU/μg
生物活性
Recombinant Human IL‑4 Protein (rp156008) stimulates cell proliferation of TF‑1 human erythroleukemic cells. The ED50 for this effect is 0.31 ng/mL.
★
规格
库存
价格
数量
10μg
rp156008-10μg
现货 Stock Image
¥699.90
50μg
rp156008-50μg
现货 Stock Image
¥1,999.90
100μg
rp156008-100μg
现货 Stock Image
¥3,399.90
1mg
rp156008-1mg
现货 Stock Image
¥16,699.90
请输入您要添加的产品数量
🧪
为什么选择此级别

His标签,PBS Only,无载体,生物活性,高性能 级 提供 ≥95%(SDS-PAGE) 纯度,适用于对基线干扰要求严格的色谱和分析工作流程。

🌡

储存与运输

-20°C储存,避免反复冻融。超低温运输 。请查阅批次 COA 获取详细规格。

📋

质量文档

SDS、COA、产品数据表及规格说明书均可下载。可通过批号查询获取批次 COA。

📚

文献证明

在色谱分析、有机合成和交叉偶联反应领域已被 0 篇同行评审文献引用。

概述


Purity: ≥95%, by SDS-PAGE visualized with Coomassie® Blue Staining
Description:
Interleukin-4 (IL-4), also known as B cell-stimulatory factor-1, is a monomeric, approximately 13 kDa‑18 kDa Th2 cytokine that shows pleiotropic effects during immune responses. It is a glycosylated polypeptide that contains three intrachain disulfide bridges and adopts a bundled four alpha-helix structure. Human IL-4 is synthesized with a 24 aa signal sequence. Alternate splicing generates an isoform with a 16 aa internal deletion. Mature human IL-4 shares 55%, 39%, and 43% aa sequence identity with bovine, mouse, and rat IL-4, respectively. Human, mouse, and rat IL-4 are species-specific in their activities. IL-4 exerts its effects through two receptor complexes. The type I receptor, which is expressed on hematopoietic cells, is a heterodimer of the ligand binding IL-4 R alpha and the common gamma chain (a shared subunit of the receptors for IL-2, -7, -9, -15, and ‑21). The type II receptor on nonhematopoietic cells consists of IL-4 R alpha and IL‑13 R alpha 1. The type II receptor also transduces IL-13 mediated signals. IL-4 is primarily expressed by Th2-biased CD4+ T cells, mast cells, basophils, and eosinophils. It promotes cell proliferation, survival, and immunoglobulin class switch to IgG4 and IgE in human B cells, acquisition of the Th2 phenotype by naïve CD4+ T cells, priming and chemotaxis of mast cells, eosinophils, and basophils, and the proliferation and activation of epithelial cells. IL-4 plays a dominant role in the development of allergic inflammation and asthma.
Due to its role in the differentiation of certain immune cell types, IL-4 is commonly used in combination with other growth factors to transform induced pluripotent stem cells into dendritic cells in high numbers. These dendritic cells can then be used for research or clinical applications to improve disease modeling, for screening and cell therapies. Study of IL-4 signaling has led to the development of monoclonal antibodies that can block the signaling pathway at various steps to mitigate the inflammatory response in certain autoimmune diseases. While IL-4 has the capacity to improve immune functions, treatments involving IL-4 have not been utilized due to the dangerous side effects that may result from IL-4 signaling in non-immune cells. Blockade of IL-4 signaling also has been studied as a therapeutic target to suppress inflammation in the tumor microenvironment. Use of IL-4 suppressors can also improve the efficacy of anti-tumor immunotherapies, as blocking IL-4 enhances the activity of tumor-specific T lymphocytes.

规格

产品名称
Recombinant Human IL-4 Protein
别名
重组人白细胞介素-4蛋白 | 重组人IL-4蛋白 | 重组人 IL-4 蛋白
英文别名
IL4E12 | interleukin 4 | interleukin-4 | Lymphocyte stimulatory factor 1 | MGC79402 | pitrakinra | B cell growth factor 1 | BCDF | B-cell stimulatory factor 1 | BCGF1 | BCGF-1 | binetrakin | BSF1 | BSF-1 | IL4 | IL-4 | IL-4B_cell stimulatory factor 1
规格或纯度
无载体,生物活性,高性能,His标签,PBS Only,≥95%(SDS-PAGE)
生物活性
Recombinant Human IL‑4 Protein (rp156008) stimulates cell proliferation of TF‑1 human erythroleukemic cells. The ED50 for this effect is 0.31 ng/mL.
表达系统
E. coli
种属
人(Human)
氨基酸
25-153 aa
序列
MGSSHHHHHHSSGLVPRGSHMHKCDITLQEIIKTLNSLTEQKTLCTELTVTDIFAASKNTTEKETFCRAATVLRQFYSHHEKDTRCLGATAQQFHRHKQLIRFLKRLDRNLWGLAGLNSCPVKEANQSTLENFLERLKTIMREKYSKCSS
蛋白标签
N-His
无载体
Yes
无动物源
No
来源
重组表达
预测分子量
17.2 kDa
SDS-PAGE
15.5 kDa, under reducing condition
分子类型
蛋白质
产品线
生物产品
储存与运输
物理形态
冻干(Lyophilized)
储存缓冲液
Lyophilized from PBS, pH7.4
复溶
We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Reconstitute at 1.0 mg/mL in sterile distilled water. Stock solutions should be apportioned into working aliquots and stored at ≤ -20 °C. Further dilutions should be made in appropriate buffered solutions.
储存条件
-20°C储存,避免反复冻融
运输条件
超低温运输
稳定性与储存
在 -20°C 下可稳定保存 1 年。避免冷冻/解冻循环。
图片

Recombinant Human IL-4 Protein (rp156008) - Protein Bioactivity
Recombinant Human IL‑4 Protein (rp156008) stimulates cell proliferation of TF‑1 human erythroleukemic cells. The ED50 for this effect is 0.31 ng/mL.

Recombinant Human IL-4 Protein (rp156008) - SDS-PAGE
3 μg/lane of Recombinant Human IL-4 Protein was resolved with SDS-PAGE under reducing (R) conditions and visualized by Coomassie® Blue staining, showing a band at 15.5 kDa under reducing conditions.

技术文档

📋 安全数据表 (SDS)

全面的危险、操作、储存及法规合规文件。

下载 SDS →

✅ 分析证书 (COA)

批次质量数据。输入批号以获取对应 COA。

查询 COA →

📊 产品数据表

产品规格和应用的快速参考摘要。

查看数据表 →

🔬 规格说明书

该级别的完整质量属性和验收标准。

查看规格说明 →

高级数据

质检证书(CoA,COO,BSE/TSE 和分析图谱)
C of A & Other Certificates(BSE/TSE, COO):
输入批号以搜索分析图谱:

通过匹配包装上的批号来查找并下载产品的 COA,每批产品都进行了严格的验证,您可放心使用!

找到5个结果

批号(Lot Number) 证书类型 货号
ZJ24F0506232 分析证书 rp156008
ZJ24F0506233 分析证书 rp156008
ZJ24F0506234 分析证书 rp156008
ZJ24F0506235 分析证书 rp156008
ZJ25F1028816 分析证书 rp156008
技术文档和文章
溶液计算器

常见问题

本产品的纯度是多少?如何测定?
本产品的纯度为 ≥95%,采用SDS-PAGE测定。批次的具体数值以分析证书(COA)为准。
什么是「无载体」?
「无载体」表示该物料经过加工和检测,适用于特种工业加工。规格侧重于影响该应用性能的杂质——例如,电子应用的金属含量、电池应用的粒度、光学应用的折射率,或对水分敏感工艺的水分含量。
什么是「生物活性」?
「生物活性」表示该产品经过加工和检测,适用于生物和生化应用。规格可能包括内毒素限值、微生物控制、无菌性、低 DNase/RNase/蛋白酶活性,以及在相关情况下的生物活性验证。
本产品应如何储存?
请于?20 °C条件下保存。避免反复冻融。建议按单次用量分装保存。
本产品如何运输?
本产品采用保温箱配冰袋运输。收货后请立即拆包,并按上述储存条件保存。
如何获取批次专用COA?
每个订单都会随附分析证书(COA),您也可以从账户订单历史中下载。如需订购前的COA,请联系您的客户代表,或使用PDP上的"申请COA"按钮——我们将提供代表性批次的COA。